[dugnsuz (Doug)]

Originally Posted by h0ughy

http://www.surplusshed.com/pages/item/pm1180.html would this be good for a binocular project where you look down with the binos?

Yes, front surface mirror is essential, but 150mm square seems a bit small for the job if you're using 50mm+ binos I think. Don't think you could fit 4 together!!!

Check out this commercial product...
http://www.tricomachine.com/skywindow/index.html

This uses an 8x10" mirror (and it's a bit pricey!!!!)

Cheers
Doug